You'll fit in here, there's a lot of people who like the same stuff as you. But yea, either start talking on the forums, add any art you've got and search through pictures for ones you want to comment on and/or fave.
Just start uploading work you've already created, get the feedback from that, and make plenty of friends who can help critique your work! There's also groups out there for that, so search for a group that fits your fancy.
deviantArt is a great place, I'm sure you'll love it here. Have fun and I'll be seeing you around!!
Hi there, I'm Aubrey. I have recently written two short stories for my son who is 11 months old. I have been thinking about finding someone to do the illustrating for me. I am terrible when it comes to drawing and it takes way to long for paint to dry, plus can you imaging trying to paint with a baby and two cats running around? I know that it wouldn't really be fan art but I really like anime and was thinking maybe if you had some time, that you might like to do the illustrations for me. If you would like to or want to find out more about the stories, please e mail me. My e mail is firstname.lastname@example.org as the subject please put "baby book illustrations". thank you for your consideration.
Join some groups and make friends! You can search for groups here: [link] (or by clicking the drop down next to the deviantART menu and clicking on the groups icon). There's lots of good groups dealing with anime, fanfiction, and feedback to help you improve your work.